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DR. CHARLES C HARDIN M.D.,PH.D
NPI 1336173087
Internal Medicine in Boston, MA

Active since July 10, 2006PECOS EnrolledAccepts Medicare Assignment
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, BOSTON, MA 02114(617) 726-2000 Get Directions Write a Review

NPPES record last updated: June 2, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Charles C Hardin M.d.,ph.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHARLES C HARDIN M.D.,PH.D (NPI 1336173087) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (229347) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2004).

NPPES Registry Identity

NPI1336173087
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHARLES C HARDINCredential: M.D.,PH.D
Location AddressMASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREETBoston, MA 02114
Mailing Address55 Fruit StBoston, MA 02114-2621 · (617) 726-1721
Phone(617) 726-2000
Sole ProprietorNo
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2004
Enumeration DateJuly 10, 2006
Last NPPES UpdateJune 2, 2010
✔ NPI 1336173087 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 229347
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 229347 (MA)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 229347 (MA)
MASSACHUSETTS GENERAL HOSPITAL, Boston, MA 02114
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Charles C Hardin M.d.,ph.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2668577677
PECOS Enrollment IDI20070420000009
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Test to measure rate of airflow 94375
This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.
360 services346 patients
Test to examine how well the lungs exchange gases 94729
This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.
309 services305 patients
Test to determine lung volumes using sensors 94726
This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.
115 services114 patients
Test to measure expiratory airflow and volume changes before and after medication administration 94060
This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.
103 services103 patients
Test for exercise-induced heart and lung stress 94621
This is a test to evaluate how your heart and lungs respond to physical exertion. You'll exercise on a treadmill or a stationary bike, while your heart rate, breathing, blood pressure, and fatigue levels are monitored. This helps identify any abnormal responses to physical activity.
98 services97 patients
Test to determine lung volumes using gas dilution or washout 94727
This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.
73 services73 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Massachusetts Eye And Ear Infirmary -

Acute Care Hospitals · Boston, MA
OwnershipVoluntary non-profit - Private
CMS Certification Number220075
Location243 Charles StreetBoston, MA 02114 · Suffolk County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KAITLYN MY-TU LAM MBBS
Internal Medicine (Cardiovascular Disease)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 724-7738
ALAKA RAY M.D.
Internal Medicine
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 726-2066
MEGHAN E SISE M.D.
Internal Medicine (Nephrology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 726-2862
HUGH G AUCHINCLOSS M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 726-2000
ANGELA M. JACQUES MD
Pediatrics
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114
Suffolk County (617) 726-2066
NICOLE J LOOK-HONG MD, MSC
Surgery (Surgical Oncology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114
Suffolk County (617) 724-3868
CORINNA M ELLIOTT MA
Student in an Organized Health Care Education/Training Program
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Suffolk County (617) 724-5600
KIRAN J AGARWAL-HARDING MD
Orthopaedic Surgery
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114
Suffolk County (617) 726-2942

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Charles Hardin's NPI number?

The NPI number for Charles Hardin is 1336173087. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Where is Charles Hardin located?

Charles Hardin practices at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. The listed phone number is (617) 726-2000.

What is Charles Hardin's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Charles Hardin enrolled in Medicare?

Yes. Charles Hardin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Charles Hardin affiliated with any hospitals?

According to CMS data, Charles Hardin is affiliated with Massachusetts General Hospital and Massachusetts Eye And Ear Infirmary -.

When was this NPI record last updated?

The NPPES record for Charles Hardin was last updated on June 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.